1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 //go:build (linux && arm64) || (linux && loong64) || (linux && riscv64) 6 7 package main 8 9 import "syscall" 10 11 func dup2(oldfd, newfd int) error { 12 return syscall.Dup3(oldfd, newfd, 0) 13 } 14